Frame for respiratory mask



FIG. 1 is a front perspective view of a frame for a respiratory mask according to a first embodiment our design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a rear perspective view thereof;

FIG. 9 is a is a front perspective view of a frame for a respiratory mask according to a second embodiment our design;

FIG. 10 is a front view thereof;

FIG. 11 is a rear view thereof;

FIG. 12 is a top view thereof;

FIG. 13 is a bottom view thereof;

FIG. 14 is a left side view thereof;

FIG. 15 is a right side view thereof; and,

FIG. 16 is a rear perspective view thereof.

The broken lines illustrate environmental structure of the frame for respiratory mask in FIGS. 9-16, which forms no part of the claimed design. 

The ornamental design for a frame for respiratory mask, as shown and described. 